*Keiji Wada¹, Yoshihiro Nakatani², Asahikawa Geopark club² (1.Earth Science Laboratory, Hokkaido University of Education at Asahikawa, 2.Geopark club of Asahikawa)

*Yasuhiro Hirai¹, Satoshi Okamura¹, Izumi Sakamoto², Ryuichi Shinjo³, Keiji Wada⁴, Takanori Yoshida⁵ (1.Hokkaido Education University, Sapporo, 2.Tokai University, 3.University of the Ryukyus, 4.Hokkaido Education University, Asahikawa, 5.Niki Junior High School, Hokkaido)

*Kyohei Sano¹, Eiichi Sato², Yoshihiko Goto³, Keiji Wada⁴ (1.Shirataki-Geopark, 2.Kobe Univ., 3.Muroran Institute of Technology, 4.Hokkaido University of education at Asahikawa)

*Keiji Wada¹, Shunya Tsurumaki¹, Ryo Ikeyauchi¹, Kyohei Sano², Eiichi Sato³ (1.Earth Science Laboratory, Hokkaido University of Education at Asahikawa, 2.Shirataki-Geopark Promotion Department, Engaru town, 3.Institute for Promotion of Higher Education, Kobe University)

*Eiichi Sato¹, Masami Izuho², Andrei V. Grebennikov³, Kyohei Sano⁴, Keiji Wada⁵ (1.Institute for Promotion of Higher Education, Kobe University, 2.Tokyo Hetropolitan University, 3.Far Eastern Geological Institute, Far Eastern Branch of Russian Academy of Sciences, 4.Geopark of Shirataki, 5.Earth Science Laboratory, Hokkaido University of Education at Asahikawa)